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What is difference between Partial Functional Dependency and Full Functional Dependency?
A functional dependency is defined as a constraint between two sets of attributes in a relation from a database.Given a relation R, a set of attributes X in R is said to functionally determine another attribute Y, also in R, (written X→ Y) if and only if eachX value is associated with at most oneY value.A functional dependency X --> Y is full functional dependency if removal of any attribute 'k' from X means that the dependency does not hold any more. Full functional dependency is minimal in size.Partial Functional Dependency Indicates that if A and B are attributes of a table, B is partially dependent on A if there is some attribute that can be removed from A and yet the dependency still holds.A key is a set of attributes that uniquely identifies an entire tuple, a function dependency allow us to express constraints that uniquely identify the values of certain attribute.
What is the ratio of 819 and 702?
us a calculater
Ratio of men to women in Alaska?
According to the US Census Bureau estimates for 2012, the ratio was 108.9 men to 100 women.
What is the ratio of 14 and 6?
The ratio of 14 to 6 can be simplified by dividing both numbers by their greatest common divisor, which is 2. This gives us a simplified ratio of 7 to 3. Therefore, the ratio of 14 and 6 is 7:3.
What is the ratio of 90 to 300?
The ratio of 90 to 300 can be simplified by dividing both numbers by their greatest common divisor, which is 30. This gives us a simplified ratio of 3 to 10. Therefore, the ratio of 90 to 300 is 3:10.
